Radiofrequency Ablation (RFA), often referred to as "burning nerves," is a modern technique that provides a conservative option for pain relief in many areas.  RFA needles are directed to pain nerves using advanced imaging.  Testing pulses are used to ensure appropriate placement of the active tip of the needle on the target pain nerve.  RF waves travel to the active tip of the needle which creates a small area of heat and tissue destruction.  In essence, RFA disconnects the source of pain from the brain by destroying a small section of the nerve that carries pain signals to the brain.